[OpenWrt-Devel] [PATCH 1/7] tegra: add new target

Tomasz Maciej Nowak tomek_n at o2.pl
Wed Mar 27 13:47:57 PDT 2019


W dniu 27.03.2019 o 21:31, Christian Lamparter pisze:
> On Wednesday, March 27, 2019 3:07:58 PM CET Tomasz Maciej Nowak wrote:
>> Hi Hauke,
>>
>> W dniu 25.03.2019 o 23:39, Hauke Mehrtens pisze:
>>> Hi Tomasz,
>>>
>>> Soke small comments, this looks mostly ok.
>>>
>> [snip]
>>>> +# CONFIG_ARM_LPAE is not set
>>>
>>> Is LPAE not supported by your SoC? This is needed for KVM support, but
>>> not all CPUs support this.
>>
>> Not really sure, seems it should be enabled for all ARM v7, it was disabled
>> in tegra_defconfig. Enabling this shouldn't do any harm, will test this.
> 
> Hm, quick FYI: KVM on ARM needs all CPUs to be in Hypervisor Mode.
> You can check this by looking in your dmesg:
> 
> if it says:
> [    0.005874] CPU: All CPU(s) started in HYP mode.
> Then yes: LPAE would be great.
> 
> But if it says:
> [    0.005306] CPU: All CPU(s) started in SVC mode.
> then you probably don't need LPAE since KVM is not an option. 

Thanks, my case would be that^^. Tested my board with LPAE enabled and kernel and image didn't boot.

> 
> Cheers,
> Christian
> 
> 

Regards

-- 
TMN





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